Slow-down and sheet-straightening device.



R. E. mes & G. A. MARTIN SLOW DOWN AND SHEET STRAIGHTENING DEVICE.

APPUCATION FILED MAR.25,19I4.

SHEETS-SHEET l.

Patented Apr. 13, 1915.

m w W! w R. E. JONES & G A. MARTiN.

SLOW nowu AND sum smsemwmc azvmz.

I APPLICATION FILED MAR. 25. I914: Y

1 135 81 1 Patented A1312 13, 1915.

i SHEETSSHEBT 2.

R: E. JONES & G. A. MARUN. SLOW DOWN AND SHEET STRAIGHTENING DEWCE.

APPLICATION FILED MAR. 25, I914.

Patented Apr. 13, 1915.

was meas e0 7 24M/ R. E. iES G. A. MARUN.

ET STRAIGHTEMHG DEVICE.

wmamww man am. 25, I914.

SLOW DOW?! AM) SEQ Patented Apr. 13, 1915.

4 SHEETS-SHEET -&.

were are ran: a

nrcnann n. cones AND encasero nannies FOLDER COMPANY, or new "ionic.

EIW'EE, new YORK, nssrenons new sons, A conronnrron SLDW-DOWN ANDSHEET-STEAIGETEN'ING QEVZGE.

-' Application filed March as, rare.

1' (121 10.71011 it may concern:

it known that we, and Gnonsn A. Mairrnr, citizens of the iinited States,and both. residing at Pearl River, in the county of Rockland, State cthined sheet-straightening and slow downdevices.

' 3 to deliver sheets upon a The particular features of the inventionare pointed out in erence being had to the accompanyi g drawings whichexemplify our invention in a preferred embodiment.

In the drawings, Figure 1 is a side elevation oi a portion of asheet-feeding machine, embodying our improvements, parts being brokenaway and parts shown in section; Fig. 2 is a top plan view of the same,parts lieing broken away and parts shown in section; Fig. is a rear endsame; Fig. -iis a diagrammatic top plan viewof a feeding machineprovided with our improvements; Fig. 5 is a fragmentary side elevationof a modification, parts being broken and parts shown in section.

Referring first to'Fig. i, 1 and 2 designate devices arranged adjacentopposite edges of a feeding machine, their functions being to engage theopposite. edges of a sheet which is being fed forwardly by the tapes 3across the feed board Supposing, for example, that sheets are being fedto the cylinder 5 of a printing press, the devices 1 and 2 are under thecontrol of sheet-actuated means for regulating the amount of movement ofeach edge of a sheet relatively to that of the other edge. By this meansthe sheet is properly registered to be delivered to the grippers of theprinting press} The detail construction of each of the devices 1 and 2will he understood from auinspection of Figs. 1, 2, 3 and 0. Y Referringto Fig. 1, the tapes 3 pass about vthe taperoller 6 shaft adapt thetapes table or plate t The upper surface of the plate or table 8 isadapted in the present embodiment to coon the shaft '7, said beingsuitably disposed to Specification of Letters Patent.

. operate with the peripheral surface RICHARD E. Jones I the appendedclaims, ref-.

elevation of the racemes s mis, 1e15, Serial no. 827,179. L

roller 9 which is mounted upon a. spindle 10 carried by the lower end ofa lever M11111, said lever arm heing keyed to a rock shait 12. A. camarm 13' which is also ,l'ieyed to the rock shaft 12 carries a cam roller14 which runs on a cam 15,

direction indicated by the arrow. When the parts are in the positionsshown in Fig.1, the cam roller 1%- travels over the inner run of the cam15 and permits the roller '9 to run upon the plate or table 8 or thesheet traveling thereover. In order to provide suitable -means for ithat, its periphery will travel forwardly with the sheet (which passesthereunder while it is being raised and lowered) a gear 17 is keyed tothe spindle 10 and meshes with a rack bar 18, the rear end of said rackcar being ,pivotally connected at 19 with theextensipn 20 of a lever armkeyed to aroch shaft 22.

' As shown in Fi s. 1, 2 and 3 the level arm 21 carries a lateriillyprojecting pin 23 upon which is journalcd the hub 2% df the extension20. A pin 25 extends through the outer end of the journal pin '23, beingadapted to be inserted into any one of a plurality of radial ntches 26provided in an abutment .27 to which one end of a spring 28 is secured,said spring 28 being mounted on the pin 23 and having itsother endexerting a pressure on the hub Fig.1. The lower end 29 of the arm 21(see Fig. 1) carries a stop pin 30 which limits the displacement of theextension 20 toward the left. The purpose of this construction will beevident from the following. description: Power for rocking the shaft 22is provided by an arm 31, the upper end of which is connected by a link32 with alever arm 33, which is eyed to a stub shaft 34: journaled inthe boss Also keyed to'the stub shaft 3% is a cam arm' 36 which carriesa roller 37 upon a the cam shaft 16 and travels therewithin thedirection of the arrow. parent from this description cam roller that asthe of a,

said cam being lrevecl to a shaft 16 which rotates in the driving theroller 9 so 21 which is,

24 tending torotate the extension 20 toward the left, according to 37mounts to the outer run'of the":

cam 38,which is keyed to It will be apcam 38, the raclr hau'ldwilltravel iforf 1 \vardly and rotate the gear 17 in a clockwise direction,together with the ridller 9.

A support 39 whichdepends from the spindle 10, carries a laterallyprojecting pin or roller 40 upon which the rack bar 18 slides.

bar 18 and spaced ratchetcbar 41 which roller 44 carried by a pin 45'which projects laterally from a fixed bracket 46. A laterally projectingpin 47 serves to journal the hub 48 of a link 49 from the outer end ofwhich projects laterally a pin 50. Journaled upon'the pin 50 is acombined pendulum and ratchet pawl, the pendulum 51 of which is heavierthan the pawl 52, thus serving to normally hold this meinber in theposition shown in Fig. 1, in which a stop pin 53 which projects from thelower end of the I link 4:9,"normally rests against the end wall 54 ofan arcuate slot 55, formed in the hub 56 of the pawl and pendulummember. A lug 57 which projects laterally from the bracket 46 serves tosupport the link 49 in its lower osition shown in Fig.4. An ad-'justable' abutment in the'form of a screw-58 serves to limit the upwardmovement of the 1 ,link 49 in the manner to be hereinafter pointed out,said screw being threaded in the lug 59 carried by bracket In themodification shownin Fig. 5, a plate or table 8 is provided with a slotor opening by means of which the roller 9 is permitted to contact withthe perpheral surface of a roller 60 which is journaled beneath theplate 8. In this modification, the peripheral surfaces of the rollers 9and 60 constitute the relatively movable surfaces which coiiperate toslow down and straighten a sheet in the manner to be pointed out.

Referring to Fig. 1, the tapes 3 deliver a sheet tothe plate or table 8at comparatively high speed, the roller 9'at that instant being 1elevated by the cam roller 1e traveling they outer run of the cam 15.The action of the cam 15 is so timed that shortly'after thesheet hascome between the roller 9 and the- 1 plate '8, said roller 9 falls uponthe sheet. I At the same time the cam 38 has displaced the cam roller 37in such a way as to impart rotating the gear 17 ripheral speed oftheroller 9 is preferably slower than that of the sheet. forwardedge-of thesheet reaches the pendulum 51, said pendulum isdisplatfed and the'pawl52 caused to move into engagement with the ratchet bar Shortlyafterward, the forward motion of said ratchet bar, as well as the rackbar 18 is arrestedby driven upwardly against,

thelink 4 :9 being the abutment 58 thus bringing the sheet to :1

av forward drive to the rack bar 18, thusand roller 9. The pe- 7 Whenthe rack bar 18 is arrested, to be absorbed by- 4 degree.

tion between said parts, and means forblockperipheral surface I movementof asheet, an

stop; Immediately after the roller 9 is eleagainst the front gages, isproduced by the, tapes 3 which still engage the rear'edge of the sheetin suflicient degree to impart thisadditional movement. f

In order to avoid undue strains and breakage by the employment of thepositively driven mechanism herein'above'described, the yieldableconnection between the arm 21 and the exten'sion20 enables any thrustwhich is imparted by the cam 38 after the the spring '28, the abutment27 -with its notches 26 making it, possible to adjustthe tension of thespring 28 to any desired We claim:

1. In a combinedf slow .dc'wni and sheet straightener forsheet"feedingunachines, a surface over which paper is fed at; relatively7 high speed,'an instrumentali face adapted to engage over the firstsaid surface, ,ns ing said instrumentality to imparts-move ment to thesecond mentioned surfaceofless velocity than the velocity of saidsheet,said means including a; lever comprising relatively movable parts and ayieldable connecing the movement of said operating means.

2. In a combined slow down and sheet straightener for sheet feedingmachines, a surface over which paper is fed at relatively high speed, aslow down roller havingits moving in the same direction as the paper isfed over the first said surface, a-rack bar geared to said slow downroller, means for reciprocating said rack bar, and sheet actuated meansfor interrupting the reciprocating movements of said rack bar.

3. In a combined slow down andsheet straightening mechanism for sheetfeeding machines, -,a surface over which the sheets are fedja rollersuitably mounted-to co- 5 operate withsaid surface in retarding theoscillatory arm, a rack bar geared to said roller,sa1d rack 115 beingalso pivotally connected to said oscillatory arm, and sheet actuatedmeans for interrupting the reciprocatory movements of said rackbar. 4:.In,- a, combined slow down and sheet straightening mechanism for sheetfeeding machines, a surface over which the sheets are fed, avroll'ersuitably mounted to cooperate with said surface in retarding themovemntof sheet, an oscillatory arm, a 1 rack bargeared to said roller.said rack bar being also pivotally connected to said oscillatory arm,and sheet actuated means for interrupting the reciprocatory movements ofsaid rack bar, said means including a 9- iciuntezl penrlulnm, a pawlmoved and a rhclr bar pivotally connected oscillatory arm and adapted tobe engaged by said pawl.

T a combined slow down and sheetstraightening mechanism for sheetfeeding machines, a surface over which the sheets are fed. a "ollersuitably mounted to cooperate with said surface in retarding themovement oi a sheet, an oscillatory arm, a rackbnr geared to saidroller, ssid rack bar being also pivotally connected to said oscillatoryarimnno sheet actuated means for interrupting the reciprocatorymovements of said reel: bar, said oscillatory arm comprising relativelymovable parts and yieldnble means for normally retaining said parts infixed relation to each other.

6. In a combined slow down and sheet straightening mechanism for sheetfeeding machines, a surface over which the sheets are fed, a rollersuitably mounted to cooperate with said surface in retarding theinc-vinenlof a sheet. an oscillatory arm, a rack bar geared to saidroller, said rack bar being also pivotally connected to said 0scil laterarm, and sheet actuated means for interrupting the reciprocatorymovements of said rack bar, said oscillatory arm comprising relativelymovable parts connected by a knuckle joint, and a spring for holdingsaid parts in extended posit-ion.

7. in a combined slow. down and sheet straightening mechanism for sheetfeeding machines, a surface over which the sheets.

are led, a roller suitably mounted to coopeatc with said surfacein'retarding'the movement of a sheet. an oscillatory arm, a rack bargeared to said roller, said rack bar being also pivotally connected tosaid oscillatory arm, and sheet actuated means for interrupting ihereciprocatory movements of said rack her, said oscillatory armcomprisicly movable parts connected by a iulieqoini, aspring for holdingsaid extended position, and means for no tension of said spring.combined slow down and sheet for sheet feeding machines, a n e over whipaper fed at relatively 1 speed, an met: 2 entulity adapted to reell'rnveling over said surface, for moving said instrumentnlity, said iona lever comprising pivot- :illy ccmzwied parts-end a vieldnble con-\lPf'l Ull betw en Hl fil parts. and sheet operated means for blockingthe movement of said instrumentalit 5. lo a combined slow down and sheetsl'roi litencr for paper feeding machines, a surf; high speed. a paperengaging roller having u r latively slow peripheral specrL-said mournedto be moved roller ocinn' shimmy ispcr engaging position,

into and om; of i over which. paper is fed relatively toting said rollerincluding a postivelv driven lever which is substantially unyielding fortransmitting power to said roller when uninterrupted in its movement,said lever being provided with means adapting it to yield when themovement of said roller is blocked.

10. In a combined slow down and sheet straightener for paper feedingmachines, a surface over which paper is fed at relatively high speed, apaper engaging roller having a relatively slow peripheral speed, saidroller being suitably mounted to be moved into and out of paper engagingposition, paper actuated means for blocking the movement of saidroller,andgneans for, ro rating said roller including a positively driven leverwhich is substantially unyielding for transmitting power to said rollerwhen uninterrupted in its movement, said lever being provided with meansadapting it to yield when the movement of said roller is'blocked, saidlever comprising relatively movable parts and a yield-able connectiontherebetween.

11. In a combined slow down and sheet straightener for paper feedingmachines, a surface over which paper is fed at relatively high speed, apaper engaging roller having a relatively slow peripheral speed, saidroller being suitably mounted to be moved into and out of paper engagingposition, paper actuated means for blocking the movement of said roller,and means for rototing said roller including a positively driven leverwhich is substantially unyieldand a yieldable connection therebetween,

said connection being yieldable in one direction only.

12. In a combined slow down and a. sheet straightening;mechanism forsheet feeding machines, a. surface over which the sheets are fed, aroller suitably mounted to co operate with said surface in retarding themovement of a sheet, means for imparting: a rotary movement to saidroller, means for moving said roller into and out of contact with saidsheet, and sheet actuated means for terminating the movement of saidmovement imparting means. i

13. In 2r combined slow down and sheet straightening mechanism for sheetfeeding machines, a surface over which the sheets are fed, a rollersuitably mounted to cooperate with said surface in retarding themovement of a sheet, means for imparting a rotary movement to saidroller, means for moving said roller into and out of contact llC beingadapted to terminate the rotary movement of said roller prior to theremoval of said roller from the sheet.

1 In a she'et feedingv machine, a surface over which sheets, are fed, aroller adapted to cooperate with said surface, means for moving saidroller into and out of contact with a sheet, a reciprocable rack gearedto said roller, a ratchet partaking \iuetm 18. In a sheet feedingmachine, a surface over which sheets are fed,jan oscillatory leverhaving an arm movable toward and away from said surface, a rollerjournaled in said arm, a gear rotatable with said roller, a supportdependiigg from said arm, a rack in engagement wit said gear, said rackbeing slidably mounted in said depending su'pport, and .sheet actuatedmeans for interrupting the movement ofsaid rack.

of the movement of said rack, and sheet 19. In a, sheet feeding machine,a power actuated; pendulum provided with a .pawl for engaging saidratchet, said reciprocable rack being provided with driving meansembodying a member with relatively movable parts and yieldable meansfornormally retaining said parts in fixed positions relative to eachother, said yieldable means being adapted to yield when the ratchet isengaged by the pawl. p

15. In a sheet feeding machine, a surface over which sheets are fed, aroller adapted to coiiperate with said surface in retarding the movementof a sheet, an oscillatory arm which carries said roller into and out ofcontact with said sheet, a rack bar geared to said roller to rotate thesame, means for reciprocating said rack bar, a ratchet bar secured'tosaid rack bar, and a sheet actu-- ated pendulum having a pawl movableinto engagement with said ratchet bar.

16. In a sheet feedin machine, a surface v over which sheets are ed, aroller adapted to coiiperate with said surface in retarding the movementof a sheet, an oscillatory arm which carries said roller into and'out ofcontact with said sheet, a rack bar geared to said roller to rotate thesame, means for reciproc'ating said rack bar, a ratchet bar securedtosaid rack bar, and a sheet actuated pendulum having a pawl movableinto engagement ,with said ratchet bar, said reciprocating meanscomprising a rock shaft, an arm keyed thereto, an extension pivotally"connected to said arm, and yieldable means for retainingsaid arm andextension in normally fixed'positions' relatively to each other.

'17. In a sheet feeding machine, a surface over which sheetsare fed, aroller adapted m-a'lly fixed positions relatively-to each other, saidyieldable means being provided with a to cofiperate with said surface inretarding the movement of a sheet, an oscillatory arm which carries saidroller into and out of c0ntact with said sheet, a rack bar geared tosaid roller to rotate the same, means for reciprocating said rack bar, aratchet'bar secured. to said rack bar, and a sheet actuated p'endulumhaving a pawl movable intoengagement with said ratchet bar, saidreciprocating means comprising a rock' shaft, an arm keyed thereto, anextension pivotally cons nected to said arm, and yieldable means forretaining said, arm and extension in nordevice for adjusting the tensionthereof.

driven arm, a reciprocatory rack bar journaled thereon adjacent one end,an oscillatory lever, a roller journaled thereon, a I

geared-connection between said roller and rack bar, means for raising.and lowering said rack bar to'malntam said connectlonduring the rise andfall of said ro1lr,-and' sheet actuated means for arresting thereciprocatory movement of said rack bar, said sheet actuated means comprisinga pendu-j him having ,a pawl movable therewith and a ratchet bar adaptedto be engagedby said pawl, said ratchet bar being connected to said rackbar.

21. In a sheetfeeding machine, a power driven arm, a reciprocatory rackbar our- 1 naled thereon ad acent-one end, an oscillatory lever, aroller journaled thereon, "a I geared connection between said roller andrack bar, means for raising and lowering said rack bar to maintain saidconnection during the rise and fall of said roller, and

sheet actuated means'for arresting the reciprocatory movement of saidrack bar, said sheet actuated means comprising a pendu; lum having a awlmovable therewith and a ratchet bar a apted to be engaged by said pawl,said ratchet bar. being connected to said rack bar, said pendulum beingpivoted upon "an axis axis. I g

j 22. In apaper bination with a surface over which paper is" to be fed,of an oscillatory lever arm, a paper,

' 1. which swings abouta second feeding machine, the com-' engagingroller journa'led in said arm,ia gear 1 rigid with said roller, a rackmeshing with f said gear, another oscillatory leve'r armconnectedtossaid, rack, a ratchet bar also connected to'the lastmentioned lever arm, and

a sheet. actuated pawl forblocking the movement of said ratchet bar.

23. In a paper feeding machine,-t I com- 'bination witha surface overwhich paper is to be fed, of a lever pivotally mounted to.

rise and fall relatively to-4 said surface, a paper engaging rollerjonrnaledin said lever, a recipl'ocatory bar suitably connected to saidroller to rotate it on its axis, another reeipiocatory bar partaking ofthe movement of the first mentioned bar, and sheet actuated means forpositively locking the reciprocatory mevements of said bars.

2%. In a combined slow-down and Sheetstraightening machine, asheet-feeding iI1-' strumentahty provided with a sheet-engaging surfacewhich partakes of the forward movement of a sheet, a ratchet bar whichalso partakes of the forward movement of said sheet, a link pivoted atone end 011 a 15 fixed axis, and a sheet actuated pawlpivotally mountedon the other end of said link, said pawl being movable into engagementwith said ratchet bar to arrest the movement of said sheet-engagingsurface of the sheet- 20 feeding instrumentality.

RICHARD E. JONES. GEORGE A. MARTIN. WVitnesses:

R. T.'BUNOURS, EOBT. H. ARMSTRONG.

